CN208438665U - A kind of improved injection mould of anti-starved - Google Patents
A kind of improved injection mould of anti-starved Download PDFInfo
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- CN208438665U CN208438665U CN201821220895.XU CN201821220895U CN208438665U CN 208438665 U CN208438665 U CN 208438665U CN 201821220895 U CN201821220895 U CN 201821220895U CN 208438665 U CN208438665 U CN 208438665U
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- vacuum tube
- type chamber
- starved
- cavity plate
- plate
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Abstract
The utility model discloses a kind of improved injection moulds of anti-starved, belong to injection moulding device technical field.It includes cavity plate and core plate, the type chamber of mold is formed after the type chamber version and core plate closure, the cavity plate is installed on the fixed form of injection molding machine, the core plate is installed on the moving die plate of injection molding machine, negative pressure device is equipped in the injection mold, the negative pressure device includes vacuum tube, vacuum pump, movable insert and telescopic oil cylinder, the vacuum tube portion is embedded in the cavity plate, one end that the vacuum tube stretches out cavity plate is connected to vacuum pump, type chamber inner sidewall outside the injection mold is equipped with movable insert, the movable insert is combined or is separated with type chamber inner sidewall, to which the other end of vacuum tube separates or is connected to type chamber.The incidence that can reduce injecting products starved defect of the utility model.
Description
Technical field
The utility model relates to injection moulding device technical fields, more specifically, being related to a kind of modified of anti-starved
Injection mold.
Background technique
The starved defect of moulding refers to that melt plastics are not filled up completely to type chamber, and appearance is moulding exterior contour
Imperfect, it is all the original for leading to starved that injection volume is too small, injection pressure is inadequate, melt flows etc. are prevented caused by exhausting problem
Cause, the place far from the mouth of a river are easier to lead to starved defect, and starved directly affects product appearance quality, once starved product shape
At can not remedy, can only scrap.
Utility model content
Utility model technical problems to be solved
The purpose of the utility model is to overcome the starved caused by melt plastics are not filled up completely in the prior art is existing
As a kind of improved injection mould for anti-starved being provided, in the injection mold, using the technical side of the utility model
Case is capable of increasing injection pressure, is conducive to die venting, avoids product starved.
2. technical solution
In order to achieve the above objectives, technical solution provided by the utility model are as follows: a kind of improved injection mould of anti-starved,
Including cavity plate and core plate, the type chamber of mold is formed after the cavity plate and core plate closure, the cavity plate is installed on note
On the fixed form of molding machine, the core plate is installed on the moving die plate of injection molding machine, and negative pressure is equipped in the injection mold and is filled
It sets, which includes vacuum tube, vacuum pump, movable insert and telescopic oil cylinder, and the vacuum tube portion is embedded in described
In cavity plate, one end that the vacuum tube stretches out cavity plate is connected to vacuum pump, and the type outside the injection mold is intracavitary
Side wall is equipped with movable insert, which combines or separate with type chamber inner sidewall, thus the other end and type of vacuum tube
Chamber partition or connection.
It is further improved as the utility model, the telescopic oil cylinder is located in the fixed form, the activity
Mold insert is combined or is separated with cavity lateral by the push rod of telescopic oil cylinder.
It is further improved as the utility model, the end point for the vacuum tube connecting with the type chamber is equipped with filtering
Lid, the filtering cover are equipped with filter hole.
It is further improved as the utility model, vacuum tube end point ecto-entad is equipped with the L that section is uprushed
Shape step, the filtering cover are connected on the step, and are interference fit with step
It is further improved as the utility model, stretches out on the vacuum tube of the cavity plate and be also communicated with compressed air
Pipe.
It is further improved as the utility model, is equipped with air valve on the compressed air hose and vacuum tube.
Beneficial effect
Using technical solution provided by the utility model, compared with prior art, have the following beneficial effects:
(1) improved injection mould of a kind of anti-starved of the utility model, since the intracavitary portion of type is in negative pressure or vacuum
State reduce the incidence of product starved so that melt plastics are more quickly filled up to the intracavitary portion of entire type.
(2) improved injection mould of a kind of anti-starved of the utility model, during being vacuumized to type chamber, filtering
Lid can be avoided vacuum tube and be blocked by plastics, it is only necessary to periodic cleaning filtering cover.
(3) improved injection mould of a kind of anti-starved of the utility model, compressed air hose can assist removing type chamber,
Remaining plastics, impurity on filtering cover etc..
Detailed description of the invention
Fig. 1 is a kind of improved injection mould structural schematic diagram of anti-starved of the utility model；
Fig. 2 is the connected mode schematic diagram of cavity plate and vacuum tube, movable insert；
Partial enlarged view in Fig. 3 Fig. 1 at A；
Fig. 4 is the structural schematic diagram of vacuum pipe end；
Label declaration in schematic diagram:
1, type core fixing seat；2 moving die plates；3, core plate；4, cavity plate；40, type chamber；41, type chamber inner sidewall；42, living
Dynamic mold insert；5, fixed form；6, type chamber fixing seat；7, vacuum tube；71, vacuum pump, 72, compressed air hose；73, air valve；74, mistake
Filter cover；740, filter hole；8, telescopic oil cylinder；9, mandril；10, sealing ring.
Specific embodiment
For the content for further appreciating that the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
The present embodiment provides a kind of improved injection moulds of anti-starved, and the influence factor of starved is more, wherein very big by one
Caused by, exhaust low in part because of pressure hinders, especially it is easier to lead to starved, this reality apart from the farther away place in the mouth of a river
It applies example to be described in detail by taking the vertical injection mould of two chamber of a mould as an example, please refers to Fig. 1, which includes core plate 3, type
Cavity plate 4, moving die plate 2, fixed form 5, type core fixing seat 1, type chamber fixing seat 6, ejecting mechanism and runner system etc., it is described
Core plate 3 is installed on the moving die plate 2 of injection molding machine, and the cavity plate 4 is installed on the fixed form 5 of injection molding machine, the shifting
Moving template 2 is fixed in type core fixing seat 1, and the fixed form 5 is fixed in type chamber fixing seat 6, the cavity plate 4 and type core
Plate 3 forms the type chamber 40 of mold after being closed, which is the vertical injection mould of two chamber of a mould, therefore there are two type chambers 40, are located at note
At left and right sides of mold, the runner system includes cast gate, main running channel and divides running channel, and type of the running channel respectively with two sides is divided described in two
Chamber 40 communicates, and the ejecting mechanism includes mandril 9 and push plate, other specific structures of injection mold belong to the prior art, this
Place repeats no more.
It by the way that negative pressure device is arranged in injection mould, to improve injection pressure indirectly, helps to be vented, be lacked with reducing starved
It falls into, the structure of the negative pressure device is described in detail by taking the type chamber of left side as an example: the negative pressure device includes vacuum tube 7, vacuum pump 71, activity edge
Part 42 and telescopic oil cylinder 8.7 part of vacuum tube is embedded in the cavity plate 4, and the vacuum tube 7 stretches out cavity plate 4
One end is connected to vacuum pump 71.
Type chamber inner sidewall 41 close to mold exterior is equipped with movable insert 42, the movable insert 42 and type chamber inner sidewall 41
Combination or separation, so that the other end of vacuum tube 7 separates or is connected to type chamber 40, referring to Fig. 2, specifically, the activity edge
Part 42 is located at the lower part of type chamber inner sidewall 41, when the movable insert 42 combination is on type chamber inner sidewall 41, with cavity plate 4
A type chamber that is complete, occupying certain space is enclosed with core plate 3, when the movable insert 42 divides with type chamber inner sidewall 41
From that is, movable insert 42 moves down certain distance, and the space where type chamber 40 is connected to the other end of vacuum tube 7.The activity edge
42 bottom of part is connected with the push rod of telescopic oil cylinder 8, by 8 push rod of telescopic oil cylinder to drive movable insert 42 and type chamber inner sidewall 41
Combination or separation, the telescopic oil cylinder 8 is located in the fixed form 5.
Referring to Fig. 4, the end point for the vacuum tube 7 for being connected to or separating with the type chamber inner sidewall 41 is equipped with filtering cover 74, institute
Filtering cover 74 is stated equipped with filter hole 740, which is equipped with the L shape step that section is uprushed, the mistake
Filter cover 74 is connected on the step, and is interference fit with step.
The negative pressure device work is as follows: mold clamping, 8 push rod of telescopic oil cylinder drives movable insert 42 to move down, with type chamber
Inner sidewall 41 separates, and is connected to vacuum tube 7 with type chamber 40, and vacuum pump 71 works, and passes through 7 extraction type chamber of vacuum tube, 40 air；It takes out
After the completion of gas, 8 push rod of telescopic oil cylinder drives movable insert 42 to move up, and separates with vacuum tube 7, starts to be molded；Due in type chamber 40
Portion is in the state of negative pressure or vacuum, so that melt plastics are more quickly filled up to inside entire type chamber 40, reduces product
The incidence of starved.Since the place far from the mouth of a river is more prone to produce starved, negative pressure device first choice is arranged far from the mouth of a river
Place.
During vacuumizing to type chamber, filtering cover 74 can be avoided vacuum tube 7 and be blocked by plastics, it is only necessary to periodically clear
Manage filtering cover 74.
In some embodiments, in order to guarantee the vacuum degree of type chamber 40, in die joint, the periphery of mandril, movable insert 42
Sealing ring 10 should be arranged in mobile space etc., and the amount of moving down of movable insert 42 requires, referring to Fig. 3, it is assumed that
Plane is L where the bottom surface of type chamber, then it is coplanar with L to be at most displaced downwardly to its top surface for movable insert 42.
In further embodiments, multiple groups negative pressure device can be set in mold, in such as injection mould of two chamber of a mould, each
A negative pressure device can be arranged in type chamber 40, and a negative pressure device can also only be arranged, such as form of different sizes two simultaneously
A negative pressure device can be arranged in part product at large cavity.
Embodiment 2
Further, it under the premise of comprising above content, stretches out on the vacuum tube 7 of the cavity plate 4 and is also communicated with pressure
It is equipped with air valve 73 on contracting air hose 72, the compressed air hose 72 and the vacuum tube 7, every time after the completion of injection molding, by mold
It opens, movable insert 42 moves down, and vacuum pump 71 stops working, and opens the air valve 73 on compressed air hose 72, leads into vacuum tube 7
Enter high pressure gas, with remaining plastics, the impurity etc. on removing type chamber, filtering cover.
Schematically the utility model and embodiments thereof are described above, description is not limiting, attached drawing
Shown in be also one of the embodiments of the present invention, actual structure is not limited to this.So if this field
Those of ordinary skill enlightened by it, without deviating from the purpose of the present invention, not inventively design
Frame mode similar with the technical solution and embodiment, all should belong to the protection range of the utility model.
Claims (6)
1. a kind of improved injection mould of anti-starved, including cavity plate (4) and core plate (3), the cavity plate (4) and type core
The type chamber (40) of mold is formed after plate (3) closure, the cavity plate (4) is installed on the fixed form (5) of injection molding machine, the type
Core plate (3) is installed on the moving die plate (2) of injection molding machine, it is characterised in that: negative pressure device is equipped in the injection mold, this is negative
Pressure device includes vacuum tube (7), vacuum pump (71), movable insert (42) and telescopic oil cylinder (8), vacuum tube (7) part
It is embedded in the cavity plate (4), one end that the vacuum tube (7) stretches out cavity plate (4) is connected to vacuum pump (71), close to institute
It states type chamber (40) inner sidewall outside injection mold and is equipped with movable insert (42), the movable insert (42) and type chamber (40) inner sidewall
Combination or separation, so that the other end of vacuum tube (7) separates or is connected to type chamber (40).
2. a kind of improved injection mould of anti-starved according to claim 1, it is characterised in that: the telescopic oil cylinder
(8) it is located in the fixed form (5), the movable insert (42) passes through the push rod of telescopic oil cylinder (8) and type chamber (40) inside
Wall combination or separation.
3. a kind of improved injection mould of anti-starved according to claim 1, it is characterised in that: with the type chamber (40)
The end point of the vacuum tube (7) of connection is equipped with filtering cover (74), and the filtering cover (74) is equipped with filter hole (740).
4. a kind of improved injection mould of anti-starved according to claim 3, it is characterised in that: the vacuum tube (7)
End point ecto-entad is equipped with the L shape step that section is uprushed, and the filtering cover (74) is connected on the step, and and step
For interference fit.
5. a kind of improved injection mould of anti-starved according to claim 1-4, it is characterised in that: stretch out institute
It states and is also communicated with compressed air hose (72) on the vacuum tube (7) of cavity plate (4).
6. a kind of improved injection mould of anti-starved according to claim 5, it is characterised in that: the compressed air hose
(72) and air valve (73) are equipped on vacuum tube (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821220895.XU CN208438665U (en) | 2018-07-31 | 2018-07-31 | A kind of improved injection mould of anti-starved |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821220895.XU CN208438665U (en) | 2018-07-31 | 2018-07-31 | A kind of improved injection mould of anti-starved |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208438665U true CN208438665U (en) | 2019-01-29 |
Family
ID=65086715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821220895.XU Active CN208438665U (en) | 2018-07-31 | 2018-07-31 | A kind of improved injection mould of anti-starved |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208438665U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114211710A (en) * | 2021-11-02 | 2022-03-22 | 滁州华源科技有限公司 | Injection mold with vacuumizing function |
-
2018
- 2018-07-31 CN CN201821220895.XU patent/CN208438665U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114211710A (en) * | 2021-11-02 | 2022-03-22 | 滁州华源科技有限公司 | Injection mold with vacuumizing function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 430108 No. 5 Workshop of Liancun Industrial Park, Yishan Street, Caidian District, Wuhan City, Hubei Province Patentee after: Wuhan Siwei Environmental Technology Co., Ltd Address before: 430108 No. 5 Workshop of Liancun Industrial Park, Yishan Street, Caidian District, Wuhan City, Hubei Province Patentee before: WUHAN SIWEI PLASTIC INDUSTRY Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Prevent improved generation injection mold of starved Effective date of registration: 20200609 Granted publication date: 20190129 Pledgee: Wuhan Rural Commercial Bank Co.,Ltd. Caidian sub branch Pledgor: Wuhan Siwei Environmental Technology Co.,Ltd. Registration number: Y2020980002886 |